Resin‐modified glass ionomer enriched with BIOGLASS: Ion‐release, bioactivity and antibacterial effect

Roma, Fábia Regina Vieira de Oliveira; Leitão, Tarcísio Jorge; Bauer, José; Firoozmand, Leily Macedo

doi:10.1002/jbm.b.35200

Cited by 7 publications

(3 citation statements)

References 42 publications

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“…The application of these techniques requires the use of bioactive materials for the restoration. A bioactive material must induce a favorable response, which requires an interaction between the material and the dental tissues, leading to the formation of mineralized tissue [ 21 ]. Thus, the treatment of deep caries lesions involves the use of ion-releasing agents to induce the remineralization of demineralized dentin through the formation of apatite [ 22 ].…”

Section: Discussionmentioning

confidence: 99%

Remineralization Potential of Three Restorative Glass Ionomer Cements: An In Vitro Study

Ghilotti

Fernández

Sanz

et al. 2023

JCM

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The aim of this in vitro study was to evaluate the remineralizing ability of three glass ionomers on demineralized dentin with different thicknesses and time periods. Fifty third molars were obtained and were sectioned into 1-, 2-, and 3-mm thick slices (n = 36 for each thickness). The specimens were demineralized with 18% EDTA for 2 h. From the glass ionomer cements (GICs) under study (Ketac Molar Aplicap, Equia Forte, or Riva Light Cure), 1 mm was placed over each slice, set, and preserved in PBS until observation after 1, 7, 14, and 28 days after placement. For each material, thickness, and time, three samples were prepared. Using Fourier Transform Infrared Spectrometry (FTIR), apatite formation was determined on the side opposite to that on which the material had been placed. By means of Energy Dispersive Spectroscopy (EDX), the changes in the Calcium/Phosphate (Ca/P) ratio were evaluated. These changes were compared between the different materials by means of a two-way ANOVA test, considering time and dentin thickness, for a significance level of p < 0.05. Results: FTIR showed a peak at 1420 cm−1, evidencing the presence of carbonated hydroxyapatite in all the materials after 14 days, which indicates that a remineralization process occurred. Riva Light Cure showed the most homogeneous results at all depths at 28 days. The Ca/P ratio was maximum at 7 days in 2 mm of dentin for Riva Light Cure and Equia Forte HT (3.16 and 3.07; respectively) and for Ketac Molar at 14 days in 1 mm (3.67). All materials induced remineralization. Equia Forte achieved the greatest effect at 2 mm and Ketac Molar at 1 mm, whereas Riva Light Cure showed similar results at all depths. In terms of Ca/P ratio, Equia Forte and Riva Light Cure remineralized best at 2 mm, whereas for Ketac Molar, it was 1 mm. Carbonate apatite formation was higher at 24 h and 7 days for Ketac Molar, whereas it decreased at 14 days for Ketac Molar and peaked in Riva Light Cure and Equia Forte.

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Section: Discussionmentioning

confidence: 99%

Remineralization Potential of Three Restorative Glass Ionomer Cements: An In Vitro Study

Ghilotti

Fernández

Sanz

et al. 2023

JCM

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“…In light of this fact, GICs are considered the gold standard among fluoride-releasing restorative materials, although they are not the only ones on the market with this feature: the amount of fluoride absorbed by enamel adjacent to GIC fillings is twice as much as that absorbed in enamel adjacent to fluoride-containing composite resins [ 47 , 48 ].…”

Section: Discussionmentioning

confidence: 99%

Evaluation of Antibacterial Activity of a Bioactive Restorative Material Versus a Glass-Ionomer Cement on Streptococcus Mutans: In-Vitro Study

Conti,

Veneri,

Amadori

et al. 2023

Dentistry Journal

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Background: Dental caries management consists of both preventive and restorative approaches. Pediatric dentists can rely on many techniques and materials to restore decayed teeth, but a high failure rate is still observed, mainly due to secondary caries. New restorative bioactive materials combine the mechanical and aesthetic characteristics of resinous materials with the capability to remineralize and the antimicrobial properties of glass ionomers, thus counteracting the occurrence of secondary caries. The aim of this study was to assess the antimicrobial activity against Streptococcus mutans of a bioactive restorative material (ACTIVA™ BioActive-Restorative™-Pulpdent©) and a glass ionomer cement with silver particles added (Ketac™ Silver—3M©), using agar diffusion assay. Methods: Each material was formed into disks of 4 mm in diameter, and four discs of each material were placed on nine agar plates. The analysis was repeated seven times. Results: Both materials showed statistically significant growth inhibition properties against S. mutans (p < 0.05). The difference in the effectiveness of the two materials was not statistically significant. Conclusion: Both ACTIVA™ and Ketac™ Silver can be recommended since both are similarly effective against S. mutans. However ACTIVA™, given its bioactivity and better aesthetics and mechanical properties compared to GICs, may provide better clinical performance.

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“…To minimize these disadvantages and improve the properties, various changes in the composition of GICs have been proposed by adding components such as metals, bioactive glasses, fluorapatite, or resins ( 11 - 14 ). The development of resin-modified GICs, through the incorporation of hydrophilic resin monomers, has provided a combination of the advantageous properties of composite resins and glass ionomer cements.…”

Section: Introductionmentioning

confidence: 99%

Correlation between fluoride release, surface hardness and diametral tensile strength of restorative glass ionomer cements

Pardi,

da Cunha,

Cunha

et al. 2024

J Clin Exp Dent

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Background The aim of this study was to determine if there is a correlation between fluoride release, surface hardness, and diametral tensile strength of restorative glass ionomer cements (GICs). Material and Methods Conventional (Riva Self Cure) and resin-modified (Riva Light Cure) GICs were used. Thirty-four samples (ø 6 x 3 mm) were prepared for each cement. The kinetics of fluoride release (n=4) was evaluated over 28 days using a fluoride-selective electrode (ISE 4010-C00). The analysis of surface hardness (n=10) was performed using a microhardness tester (Shimadzu HMV-2000, Japan) with a Knoop indenter and a load of 25 gf for 30 seconds. The diametral tensile strength test (n=10) was conducted on a universal testing machine at a speed of 0.75 mm/min. Fluoride release data were analyzed by two-way repeated measures ANOVA and Bonferroni post hoc test, while independent t-test was used for other analyses (α=0.05). Results Overall, the groups showed higher fluoride release until day 7 and a progressive decrease until day 28. On day 1 and day 21, Riva Self Cure showed a higher level of release than Riva Light Cure ( p =0.026). Riva Light Cure showed higher diametral tensile strength ( p <0.0001) and surface hardness ( p =0.034) than Riva Self Cure. A negative correlation was found, indicating that higher fluoride release is associated with lower surface hardness and diametral tensile strength. Conclusion Fluoride release and mechanical performance are related properties of GICs, and these properties exhibit different values depending on the type of material. Resin-modified GIC release less fluoride but exhibit better mechanical performance compared to conventional GIC. Key words: Diametral Tensile Strength, Fluoride, Glass Ionomer Cement, Surface Hardness.

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Resin‐modified glass ionomer enriched with BIOGLASS: Ion‐release, bioactivity and antibacterial effect

Cited by 7 publications

References 42 publications

Remineralization Potential of Three Restorative Glass Ionomer Cements: An In Vitro Study

Remineralization Potential of Three Restorative Glass Ionomer Cements: An In Vitro Study

Evaluation of Antibacterial Activity of a Bioactive Restorative Material Versus a Glass-Ionomer Cement on Streptococcus Mutans: In-Vitro Study

Correlation between fluoride release, surface hardness and diametral tensile strength of restorative glass ionomer cements

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